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Valves, controls + systems
Innovation + Quality
“i-Tronic” /“R-Tronic”
Energy saving and improvement of the room climate
achieved with low investments
Product range
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Contents
Improvement of the room climate and energy saving
achieved with low investments
Contents
2 Improvement of the room climate and energy saving achieved with low investments
3 Quality of the room climate /
Measures for an improved room climate and energy consumption with low investments
4-5 “i-Tronic” Climate display device /
Models
6-7 “R-Tronic” Climate display device/control /
Models
8 Energetic evaluation of the climate display/control “R-Tronic RTFC K”
9 “R-Con” Wireless receiver for surface heating and cooling systems
10 “Synet CR” Communication centre
11 “Synet CR” Software interface
12 “R-Tronic WA K” Thermostat for heating and cooling operation
The cheapesT
energy is
whaT you
don´ T use
arthur h. rosenfeld, physicist
Improvement of the room climate
and energy saving
achieved with low investments
An optimized indoor climate has a positive
effect on our health and efficiency.
The room climate is mainly influenced by
the temperature (C°), the relative humidity
(RH, relative humidity in %) and the CO2
content (in ppm, parts per million) in the air.
This product range shows how a
comfortable room climate with a reduced
energy consumption can be achieved with
low investment measures.
2
Quality of the room climate /
Measures for an improved room climate and
energy consumption with low investments
Quality of the room climate
Our well being is influenced by the ambient
air temperature to a high degree. This
temperature can be adjusted to requirements
of comfort and low energy consumption by
using room temperature controllers in conjunction with hydraulically balanced radiators
and surface heating and cooling systems.
Also the temperature-dependent ambient air
humidity (RH) influences our well being.
Both, ambient air temperature and humidity,
can be displayed in a comfort diagram (see
illustration 1). The water vapour absorption
capacity of the air is determined by the RH
value. Moisture damages, for instance on
cold outer walls, may occur if this value is
exceeded over a longer period. Excessive
water vapour can be expelled by ventilating
the room. This way, moisture damages can
be avoided. The frequency of airing depends
on the outside temperature but a RH value
of 65% should not be exceeded.
After all, the quality of the room climate is
influenced by the carbon dioxide content
(CO2) to a high degree.
100
uncomfortably humid
Relative ambient air humidity (%)
90
80
70
60
comfortable
50
40
30
still comfortable
20
uncomfortably dry
10
0
12
14
16
18
20
22
24
26
Ambient air temperature (°C)
Ambient air
temperature
Air exchange
rate
1
1/h *
Shock ventilation
Basic airing
* Exchange of the
ambient air volume
per hour
Cooling down
Heating up
CO2-concentration
in the ambient air
Time
“Pettenkofer” limit*)
Shock ventilation
28
Measures for an improved room
climate and energy consumption with
low investments
Heat losses caused by room airing cannot
be avoided completely as a minimum of
airing must be ensured. For this reason,
the Energy Saving Directive prescribes a
minimum air exchange rate of 0.6-0.7h-1
which can be reached with the help of
different airing measures. Window airing
constitutes a very simple measure. Air
exchange rates up to 15 h-1 can be reached
by opening the window completely and an
improvement of the ambient air quality is
already reached after a few minutes. As little
energy as possible should be wasted during
airing. This objective is supported by the
display of the CO2 and RH values and their
allocation for an optimum indoor climate.
The following values are defined in the
guideline VDI 6022-3:
CO2 ≤ 1000 ppm (“Pettenkofer” limit)
RH about 30…65%
Once the measured value is again within the
recommended range, window airing can be
terminated. Warming up of the fresh air is
now the main task of the heating system.
The heat which is stored in the walls of the
room and the interior furnishing is retained
to a large extent.
When combining room temperature control
and the above airing measures, much more
energy can be saved than in systems in
which the climate values are ignored.
1 Simplified illustration of the comfort zone
defined by the ambient air humidity and
the room temperature
2 Effects of window airing on the room
temperature and the CO2 content in the
ambient air (example).
*) The “Pettenkofer” limit is a value referring to the
CO2 concentration in the ambient air. When this
value is exceeded, the ambient air becomes inferior
as a result and fatigue phenomena occur. Indoor, a
value of 1000 ppm (parts per million) is acceptable.
Outdoor concentration
Time
2
3
“i-Tronic” Climate display device
Oventrop offers the climate display
device “i-Tronic” or the climate display
device/control “R-Tronic” for the
improvement of the room climate.
“i-Tronic” Climate display device
“i-Tronic TFC” is a climate meter monitoring
the important room climate parameters:
- room temperature (°C)
- relative humidity RH (%)
- carbon dioxide CO2 (ppm)
The climate meter shows the current
measured values. The improvement of the
indoor climate quality through airing is
directly visible. Thus, the user can carry
out the airing periods on an energy-saving
basis.
The use of the climate meter “i-Tronic
TFC” is an especially energy-saving and
low-investment measure for achieving a
good and healthy indoor climate.
1 Example “i-Tronic TFC” with table stand
1
4
“i-Tronic” Climate display device
Models
Product
System
Description
“i-Tronic TFC” Climate meter with
integrated sensor for display of the
PERATUR
E
EM
UMIDIT
RH
Y
AI
PERATUR
E
EM
UMIDIT
RH
Y
AI
C
UMIDIT
RH
Y
AI
N DIOX
BO
ID
AR
C
T
PERATUR
E
EM
T
Item no. 1150683
N DIOX
BO
ID
AR
N DIOX
BO
ID
AR
E
“i-Tronic TFC”
T
Power supply via an external flush-mounted
power pack (100-240V∼/50-60 Hz),
with wall bracket.
C
- room temperature in °C
- relative humidity RH in %
- CO2 content in ppm
“i-Tronic TFC” Climate meter with
integrated sensor for display of the
- room temperature in °C
- relative humidity RH in %
- CO2 content in ppm
Power supply via an external mains
adaptor (100-240V∼/50-60 Hz),
with table stand.
Item no. 1150685
E
“i-Tronic TFC”
“i-Tronic TFC” Climate meter with
integrated charging electronics for
location-independent measurement of the
- room temperature in °C
- relative humidity RH in %
- CO2 content in ppm
Item no. 1150688
E
“i-Tronic TFC”
Power supply via a detachable mains
adaptor with micro-USB cable.
A mobile monitoring of the important
room climate parameters is possible
through two integrated rechargeable
batteries (2 x AA NIMH) in the table stand.
5
“R-Tronic” Climate display device/control
“R-Tronic” Climate display device/control
The actuators “Aktor MH/MD CON B” e. g.
on the radiator are controlled via radio.
A maximum of three actuators “Aktor
MH/MD CON B” can be teached in on one
“R-Tronic”. For a mobile quick access via
the internet up to 16 wireless thermostats
can be teached in on the centre “Synet
CR” (see page 10). All settings are easily
made with the wireless thermostat and the
system status is displayed.
Adjustable nominal temperatures and time
profiles facilitate an optimum room
temperature control. Depending on the
model, the climate control additionally
displays the air humidity and the CO2
concentration. These values can then be
influenced directly (e. g. by airing).
Models:
- “R-Tronic RT B”:
Wireless thermostat with actuator “Aktor
MH/MD CON B” for the room temperature
control with timer functions.
- “R-Tronic RTF B”:
as “R-Tronic RT B”, but additionally with
integrated humidity sensor and display
of the relative humidity RH in %.
- “R-Tronic RTFC K”:
as “R-Tronic RTF B”, but additionally
with CO2 sensor and display of the CO2
concentration in ppm. If there is
excessive CO2 concentration, airing
information is displayed.
1 Installation example “R-Tronic RTFC K”
1
° C
1
6
E
AI
UMIDI
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R H
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P E R AT U R
%
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ON DIOX
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ppm
“R-Tronic” Climate display device/control
Models
Product
System
Description
T
PERATUR
E
EM
T
“R-Tronic RT B” Wireless thermostat
with actuator “Aktor MH CON B” for
- room temperature control with timer
functions.
Power supply via battery.
Power supply via an external flushmounted power pack or a mains adaptor
is possible (to be ordered separately).
PERATUR
EM
“R-Tronic RT B”
Item no. 1150680
plus “Aktor MH CON B” Item no. 1150665
R-Tronic RTF B” Wireless thermostat
with humidity display and actuator
“Aktor MH CON B” for
- room temperature control with timer
functions and
- integrated humidity sensor and display
of the relative humidity RH in %.
Power supply via battery.
Power supply via an external flushmounted power pack or a mains adaptor
is possible (to be ordered separately).
UMIDIT
RH
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UMIDIT
RH
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ON DIOX
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PERATUR
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Item no. 1150682/84
“R-Tronic RTFC K”
plus “Aktor MH CON B” Item no. 1150665
“R-Tronic” RTFC K” Wireless thermostat
with humidity and CO2 display as well as
actuator “Aktor MH CON B” for
- room temperature control with timer
functions and
- integrated humidity sensor and display
of the relative humidity RH in % and
- sensor for measurement of the CO2
content and display of the CO2
concentration in ppm.
Power supply via an external flushmounted power pack or mains adaptor
(100-240V∼/50-60 Hz).
E
“R-Tronic RTF B”
Item no. 1150681
plus “Aktor MH CON B” Item no. 1150665
7
Energetic evaluation of
the climate display/control “R-Tronic RTFC K”
1800
1700
1600
Limit value
1500
1400
1300
1200
CO2 in ppm
1100
1000
900
800
700
600
500
400
300
200
100
0
2
4
6
8
10
12
Time in hours
14
16
18
20
22
24
Residential area
1
Exceedance index – Residential area in ppm · %
15.000
14.000
13.000
12.000
11.000
10.000
9.000
8.000
7.000
6.000
5.000
4.000
3.000
2.000
1.000
0
n = 0.6 constant + manual n = 30
n = 0.6 constant
n = 0.6 constant + “R-Tronic RTFC K” n = 30
2
Energy expenditure: “R-Tronic RTFC K” Climate display/control
compared to other control concepts
Temperature control
Control concept
New building
Existing
building
Climate display/control
“R-Tronic RTFC K”
(through too long
shock ventilation)
S
Temperature control +
shock ventilation
New building Existing
building
Reference (100 %)
Standard thermostat
119.3 %
124.8 %
4.3 %
123.6 %
129.1 %
Electronic
radiator thermostat
105.5 %
105.5 %
4.3 %
109.8 %
109.8 %
(standard with
heating medium temperature effect)
3
8
Additional
expenditure
The Oventrop climate display device /
control “R-Tronic RTFC K” facilitates the
improvement of the air quality and the
saving of energy.
Prof. Dr.-Ing. Rainer Hirschberg (publicly
appointed and sworn expert for heating,
ventilation/air-conditioning and sanitary
technology) outlines these advantages in the
study - Energetic evaluation of the room
control “R-Tronic” - amongst others for
residential areas in residential buildings.
The essential statements of the study are:
1. Air quality
The “R-Tronic RTFC K” measures the CO2
concentration and displays an exceedance
of the presettable limit value. Thus, the user
notices the necessity to ventilate the room
to maintain the air quality. At the same
time, a shortfall in the limit value
signals the user to terminate airing.
(Illustration 1 shows the temporal
development of the CO2 concentration
when using the “R-Tronic RTFC K”.)
For classification of the CO2 values as
indicator for the air quality, the “exceedance
index” has established itself. It is the product
of the exceedance average value (medium
CO2 concentration in ppm less reference
value 1500 ppm) and the excess frequency
(time share in % based on the whole period
considered – 24h – during which the CO2
concentration is higher than the reference
value).
(Illustration 2 shows the exceedance index
in ppm · % for a residential area with a
basic air exchange n=0.6 1/h.)
It is obvious that with a correct application
of the “R-Tronic RTFC K” with values less
than 1000 ppm · % (see page 3) an
optimum air quality relating to the CO2
concentration can be achieved.
2. Energy saving
The control concept of the “R-Tronic
RTFC K” (i. e. wireless thermostat and
actuator are separated) excludes the
heating medium temperature effect. The
study could determine a value for the
expenses which is far below the value
according to DIN V 18599-10 for PI
regulators with optimization function.
The study shows that approx. 29.1 % of
the energy can be saved compared to e. g.
standard thermostats directly mounted on
radiators in existing buildings.
(Illustration 3 shows the energy
consumption:
Climate display device/control “R-Tronic
RTFC K” compared to other control
concepts.)
“R-Con” Wireless receiver
for surface heating and cooling systems
Room 1
Room 2
d
a
a
c
e
Room 1
24 V / 230 V
Room 2
1
b
b
2
Heating/Cooling
C/O signal
b
f
“R-Con” Wireless receiver
Electronic multichannel wireless receiver
for room temperature control of up to 8
independent heating zones according to
adjustable timed programmes at the
wireless thermostats “R-Tronic RT B”,
“R-Tronic RTF B” and “R-Tronic RTFC K”
Operation via the menu-driven wireless
thermostat.
Selectable functions:
- Pump logic with adjustable lead time
and follow-up time
- Burner logic for heat demand
- Two point control
- PWM control for surface heating
- Switching from heating to cooling
(additional module “R-Con HC” in
preparation)
The functions are selected via a rotary
switch directly at the wireless receiver.
Electrothermal actuators “Aktor T 2P” 24 V
or 230 V can be connected to the 8
channels (closing contact with 4A/250 V
AC each).
“R-Con HC” Extension module heating/
cooling for “R-Con” wireless receiver
The extension module is connected to the
wireless receiver “R-Con” and is used for
switching between heating and cooling
operation via a C/O signal (change-over
signal). The C/O signal can be evaluated
by standard reversible heat pumps.
1 System illustration
Legend:
a Wireless thermostat “R-Tronic RT B”,
“R-Tronic RTF B”, “R-Tronic RTFC K”
b Wireless receiver “R-Con”
c Extension module “R-Tronic HC”
(in preparation)
d Wireless window contact “FK-C F”
(in preparation)
e Electrothermal actuator “Aktor T2P”
(two point)
f Stainless steel distributor/collector
“Multidis SF”
g Heating circuit pump
2 Wireless receiver “R-Con”, 8 channels
with logic module
Item no.: 1150772
and
Extension module “R-Con HC” for
wireless receiver “R-Con” (in preparation)
Item no.: 1150774
3 Wireless window contact “FK-C F”
(in preparation)
Item no.: 1153070
3
9
“Synet CR” Communication centre
“Synet CR” Communication centre
The centre for the simple networking,
visualization and parameterization of
“R-Tronic” climate display devices/controls
via web interface or smartphone.
Up to 16 wireless thermostats or rooms
can be managed by the centre by
transmitting adjustable time programmes
for the individual room from the centre to
the “R-Tronic” via the bi-directional radio
communication.
Access options via:
- the mobile network worldwide with the
smartphone (App)
- a WLAN network with PC/laptop/tablet
or smartphone
- a LAN network with PC/laptop
User interfaces:
- integrated web interface
- App for iOS and Android terminals
Demand
1
2
10
Interfaces:
- LAN
a. direct PC/laptop connection
b. direct router connection
- USB for WLAN stick
a. Access Point Mode
b. Client mode
- Radio communication with “R-Tronic”
climate display devices/controls
- Mains adaptor 5 V
The communication centre “Synet CR” is
also suitable for wall attachment.
1 System illustration
Integration in the building technology
2 Communication centre “Synet CR”
item no. 1150687
“Synet CR” Software interface
The user interface of the communication
centre “Synet CR” allows an easy
operation of the whole system via
smartphone, tablet or PC. This is a
(terminal) neutral WEB App. The user
interface is displayed on all terminals in the
same manner.
The user interface is clearly structured and
therefore allows the configuration of the
“R-Tronic” system as well as the operation
and visualization of the room-related
parameters.
Time profiles and desired temperatures
can be set easily. Also settings such as
setback operation or standard operation
can be activated for the entire dwelling by
mouse click or touchscreen.
For evaluation of the climate parameters,
e. g. temperature, humidity* and CO2*,
there is a room to room trend recording.
1 Control room climate conveniently via
smartphone
2 Startup screen of the “Synet CR”
interface
3 Room to room climate data (temperature,
relative humidity*, CO2*)
4 Trend recording of the room climate data
1
*) depending on the “R-Tronic” model
2
3
4
11
“R-Tronic WA K” Thermostat for heating and cooling operation
The “R-Tronic WA K” is an electronic
thermostat for room temperature control of
fan coil units with heating and cooling
function, for instance in hotel rooms
or rooms open to the public. A simple
menu guide allows selection of the nominal
room temperature between an upper and
lower limit, and three-stage or automatic
(temperature controlled) fan speed control.
Further settings, such as adjustment of the
upper and lower temperature limits, can only
be carried out by the qualified tradesman via
an encrypted access to the operating menu.
A wireless window contact “FK-C F” can be
teached in so that the heating or cooling
operation is interrupted when opening the
window.
TE
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1 Installation example “R-Tronic RTFC K”
2 “R-Tronic WA K”
Thermostat with fan drive (in preparation)
item no.: 1150690
“Aktor T 2P”
Electrothermal actuator (two point)
item no.:1012415/16
“FK-C F”
Wireless window contact
item no.: 1153070
3 System illustration with fan coil
RE
° C
Further information can be found in the
Oventrop catalogue “Products”, the
technical data sheets or on the internet,
product range 8.
Subject to technical modifications
without notice.
Private persons may purchase our
products from their qualified installer.
2
Presented by:
Cooling
3
Heating
OVENTROP GmbH & Co. KG
Paul-Oventrop-Straße 1
D-59939 Olsberg
Phone +49 (0) 2962 82-0
Fax
+49 (0) 2962 82-450
E-Mail [email protected]
Internet www.oventrop.de
Printed on paper free from
Product range 8
PÜ 316-EN/3/03.2015/MW chlorine bleaching.
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